Product description
The stator is a length of tubular steel called a "can" that is lined with a rubber compound called the "elastomer". The elastomer is formed with a helical(multi-lobed) pattern similar to that of the rotor. The difference between the stator and the rotor is that the stator will have one more "lobe" than the rotor. Since the stator always has one more lobe than the rotor, the ratio of rotor boles(X) to the stator lobes (X+1) is usually designated as (X):(X+1). For examole: 1:2, 3:4, 5:6, 9:10, etc.